title: Target-oriented design method for ultrabroadband single-mode triple-clad fibers.
abstract: Many inherent troubles from holey fiber technology are avoided according to leakage losses from the endlessly single-mode (ESM) property. The target-oriented design method (TODM) brings the potentialities of triple-clad fibers (TCFs) with arbitrarily available structure and performance into full play in transmission performance, because of the scalar wave equation combined with infinitesimal calculus of fiber performance. TCF with modified total internal reflection guidance optimized by TODM under the tolerance Δh1≤6% has an ultrabroadband single-mode property similar to the ESM property of solid-core microstructured nonzero dispersion shifted fibers without tolerance and optimal structure to avoid higher-order modes and to reduce macro-bending loss.
authors.forename: Ye Heng
authors.initials: YH
authors.lastname: Wang